package libs;

/**
 *              This interface is designed to be implemented by classes
 *              which check existence of an entity in database.
 *
 * @author      Jan Papousek
 * @version     2009-03-31
 */
public interface Existence {

    /**
     *          It checks if the entity exists.
     *
     * @return  TRUE if the entity exists, otherwise FALSE.
     */
    boolean exists();

}
